The <head> tag is a container for all the head elements in an HTML page. To add a <head>…</head> the tag is quite easy. Add the title of the document under it or meta information, styles, scripts, etc.
Just keep in mind, the <title>…</title> tags gets added inside the <head>…</head> tags.
Example
You can try to run the following code to add the <head> tag in an HTML page,
<!DOCTYPE html> <html> <head> <title>HTML head tag</title> </head> <body> <h2>Working with HTML head tag</h2> <p>This is demo text.</p> <p>Displaying how head tag is used in HTML. Add title in it or meta information about the document.</p> </body> </html>